書誌事項
- タイトル別名
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- Formation of Titanium Hydride in Dilute Cu-Ti Alloy by Aging in Hydrogen Atmosphere and Its Effects on Electrical and Mechanical Properties
- スイソ チュウ ジコウ ニ ヨル Cu-Ti キハク ゴウキン チュウ ノ チタン スイソカブツ ノ セイセイ ト ソノ デンキテキ ・ リキガクテキ トクセイ エ ノ エイキョウ
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We have investigated the specific contributions of titanium-hydride precipitates to the improvement of electrical conductivity and strength for Cu-0.36 mol% Ti alloys aged in a hydrogen atmosphere at 773 K, where Cu4Ti phase is not to appear. During the aging, titanium-hydride particles, which have a composition of H/Ti=2, are formed by reaction of solute titanium with hydrogen diffused into the alloy. The particles have an octahedral shape with facets parallel to {111} of the matrix. The size and volume fraction of the hydride particles increase with aging time, and then level off after aging for 100 h, while the number density exhibits a maximum at 24 h. The precipitation reduces the concentration of solute titanium in the matrix and leads to significant improvement of the electrical conductivity, to the level comparable to pure copper. The dispersed TiH2 particles gives rise to strengthening with the Orowan mechanism, of approximately 40 MPa at a maximum in yield strength.<br>
収録刊行物
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- 日本金属学会誌
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日本金属学会誌 76 (8), 496-503, 2012
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282681458822912
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- NII論文ID
- 10030953911
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- NII書誌ID
- AN00187860
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- COI
- 1:CAS:528:DC%2BC38Xhs1ylsr3P
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- ISSN
- 18806880
- 24337501
- 00214876
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- NDL書誌ID
- 023926063
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可